CVE-2026-27131
Sprig Plugin for Craft CMS potentially discloses sensitive information via Sprig Playground
The Sprig Plugin for Craft CMS is a reactive Twig component framework for Craft CMS. Starting in version 2.0.0 and prior to versions 2.15.2 and 3.15.2, admin users, and users with explicit permission to access the Sprig Playground, could potentially expose the security key, credentials, and other sensitive configuration data, in addition to running the hashData() signing function. This issue was mitigated in versions 3.15.2 and 2.15.2 by disabling access to the Sprig Playground entirely when devMode is disabled, by default. It is possible to override this behavior using a new enablePlaygroundWhenDevModeDisabled that defaults to false.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- High
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
5.5
Sprig Plugin for Craft CMS potentially discloses sensitive information via Sprig Playground
The Sprig Plugin for Craft CMS is a reactive Twig component framework for Craft CMS. Starting in version 2.0.0 and prior to versions 2.15.2 and 3.15.2, admin users, and users with explicit permission to access the Sprig Playground, could potentially expose the security key, credentials, and other sensitive configuration data, in addition to running the hashData() signing function. This issue was mitigated in versions 3.15.2 and 2.15.2 by disabling access to the Sprig Playground entirely when devMode is disabled, by default. It is possible to override this behavior using a new enablePlaygroundWhenDevModeDisabled that defaults to false.
- Record
CVE-2026-27131- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:L/A:N - Weakness
- CWE-200, CWE-489
- Updated
- 2026-11-02
EUVDEUVD-2026-14515
5.5
The Sprig Plugin for Craft CMS is a reactive Twig component framework for Craft CMS. Starting in version 2.0.0 and prior to versions 2.15.2 and 3.15.2, admin users, and users with explicit permission to access the Sprig Playground, could potentially expose the security key, credentials, and other sensitive configuration data, in addition to running the hashData() signing function. This issue was mitigated in versions 3.15.2 and 2.15.2 by disabling access to the Sprig Playground entirely when devMode is disabled, by default. It is possible to override this behavior using a new enablePlaygroundWhenDevModeDisabled that defaults to false.
- Record
EUVD-2026-14515- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:L/A:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-m59h-42jf-cphr
5.5
Sprig Plugin for Craft CMS potentially discloses sensitive information via Sprig Playground
Admin users, and users with explicit permission to access the Sprig Playground, could potentially expose the security key, credentials, and other sensitive configuration data, in addition to running the hashData() signing function.
This issue was mitigated in versions 3.7.2 and 2.15.2 by disabling access to the Sprig Playground entirely when devMode is disabled, by default. It is possible to override this behaviour using a new enablePlaygroundWhenDevModeDisabled that defaults to false.
References:
- Record
GHSA-m59h-42jf-cphr- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:L/A:N - Weakness
- CWE-200, CWE-489
- Updated
- 2026-11-02
NVD
5.5
The Sprig Plugin for Craft CMS is a reactive Twig component framework for Craft CMS. Starting in version 2.0.0 and prior to versions 2.15.2 and 3.15.2, admin users, and users with explicit permission to access the Sprig Playground, could potentially expose the security key, credentials, and other sensitive configuration data, in addition to running the hashData() signing function. This issue was mitigated in versions 3.15.2 and 2.15.2 by disabling access to the Sprig Playground entirely when devMode is disabled, by default. It is possible to override this behavior using a new enablePlaygroundWhenDevModeDisabled that defaults to false.
- Record
CVE-2026-27131- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:L/A:N - Weakness
- CWE-200, CWE-489
- Updated
- 2026-11-02
OSV
5.5
Sprig Plugin for Craft CMS potentially discloses sensitive information via Sprig Playground
The Sprig Plugin for Craft CMS is a reactive Twig component framework for Craft CMS. Starting in version 2.0.0 and prior to versions 2.15.2 and 3.15.2, admin users, and users with explicit permission to access the Sprig Playground, could potentially expose the security key, credentials, and other sensitive configuration data, in addition to running the hashData() signing function. This issue was mitigated in versions 3.15.2 and 2.15.2 by disabling access to the Sprig Playground entirely when devMode is disabled, by default. It is possible to override this behavior using a new enablePlaygroundWhenDevModeDisabled that defaults to false.
- Record
CVE-2026-27131- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:L/A:N - Weakness
- CWE-200, CWE-489
- Updated
- 2026-11-02
OSVGHSA-m59h-42jf-cphr
5.5
Sprig Plugin for Craft CMS potentially discloses sensitive information via Sprig Playground
Admin users, and users with explicit permission to access the Sprig Playground, could potentially expose the security key, credentials, and other sensitive configuration data, in addition to running the hashData() signing function.
This issue was mitigated in versions 3.7.2 and 2.15.2 by disabling access to the Sprig Playground entirely when devMode is disabled, by default. It is possible to override this behaviour using a new enablePlaygroundWhenDevModeDisabled that defaults to false.
References:
- Record
GHSA-m59h-42jf-cphr- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:L/A:N - Weakness
- CWE-200, CWE-489
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
putyourlightson/craft-sprigPackagist |
2.0.0 up to 2.15.2 | 2.15.2 |
putyourlightson/craft-sprigPackagist |
3.0.0 up to 3.7.2 | 3.7.2 |
putyourlightson/craft-sprigPackagist |
2.0.0 up to 2.15.2, plus listed versions 2.0.12.1.02.10.02.10.12.11.0 Show 24 moreShow less2.12.02.13.02.13.12.14.02.14.12.15.02.15.12.2.02.2.12.3.02.4.02.5.02.5.12.6.02.6.12.6.22.7.02.7.12.7.22.7.32.8.02.8.12.9.02.9.0-beta.1 |
2.15.2 |
putyourlightson/craft-sprigPackagist |
3.0.0 up to 3.7.2, plus listed versions 3.0.13.0.23.1.03.1.0-beta.13.2.0 Show 10 moreShow less3.2.13.3.03.4.03.5.03.5.13.5.23.6.03.6.13.7.03.7.1 |
3.7.2 |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-27131 is a medium vulnerability (CVSS 5.5) in Putyourlightson Craft-sprig, published March 23, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.26%, the 18th percentile. Fixed in putyourlightson/craft-sprig 2.15.2.
References
github.com/putyourlightson/craft-sprig/security/advisories/GHSA-m59h-42jf-cphr
github.com/putyourlightson/craft-sprig/commit/09c9da2ffb45a8857829f3390ae2578e26cfe03b
github.com/putyourlightson/craft-sprig/commit/db18c46f6dc5603828aa321a3a615adbd677d475
nvd.nist.gov/vuln/detail/CVE-2026-27131
github.com/advisories/GHSA-m59h-42jf-cphr
github.com/CVEProject/cvelistV5/tree/main/cves/2026/27xxx/CVE-2026-27131.json
github.com/putyourlightson/craft-sprig